The unloading dock at the warehouse of PAS Supermarket has two workers who unload their own assigned truck respectively. The nter armal time of trucks is exponertal with a mean of 20 minutes while the unloading time per truck is exponential with a mean of 15 minutes. Ifa truck arrives and two workers are unioading other trucks, the amving truck joins the line of trucks waiting for service. Assume there is enough space to accommodate essentialy any number of ucks waiting in the line e Kou may use the formulas for M/M/2 Queuing Model) What is the average number of trucks in the waiting line? Ob.0.5 Oc3 Od.0.1227 Oe 2.25

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The unloading dock at the warehouse of P&S Supermarket has two workers who unload their own assigned truck respecsvely. The inter arval time of trucks is exponential with
a mean of 20 minutes while the unloading time per truck is exponential with a mean of 15 minutes. If a truck arrives and two workers are unloading other trucks, the arriving
truck joins the line of trucks waiting for service. Assume there is enough space to accommodate essentialy any number of trucks waiting in the ine int You may use the
formulas for M/M/2 Queuing Model)
What is the average number of trucks in the waiting line?
O a. 0.0333
Ob.0.s
O. 3
Od.0,1227
Oe. 2.25
Transcribed Image Text:The unloading dock at the warehouse of P&S Supermarket has two workers who unload their own assigned truck respecsvely. The inter arval time of trucks is exponential with a mean of 20 minutes while the unloading time per truck is exponential with a mean of 15 minutes. If a truck arrives and two workers are unloading other trucks, the arriving truck joins the line of trucks waiting for service. Assume there is enough space to accommodate essentialy any number of trucks waiting in the ine int You may use the formulas for M/M/2 Queuing Model) What is the average number of trucks in the waiting line? O a. 0.0333 Ob.0.s O. 3 Od.0,1227 Oe. 2.25
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